/*
 * Copyright (c) 2007, 2015, Oracle and/or its affiliates. All rights reserved.
 * ORACLE PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
 */
/*
 * Copyright 1999-2002,2004 The Apache Software Foundation.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.sun.org.apache.xerces.internal.dom;

import org.w3c.dom.Node;

/**
 * NON-DOM CLASS: Describe one of the Elements (and its associated
 * Attributes) defined in this Document Type.
 * <p>
 * I've included this in Level 1 purely as an anchor point for default
 * attributes. In Level 2 it should enable the ChildRule support.
 *
 * @xerces.internal
 */
public class DeferredElementDefinitionImpl
    extends ElementDefinitionImpl
    implements DeferredNode {

  //
  // Constants
  //

  /**
   * Serialization version.
   */
  static final long serialVersionUID = 6703238199538041591L;

  //
  // Data
  //

  /**
   * Node index.
   */
  protected transient int fNodeIndex;

  //
  // Constructors
  //

  /**
   * This is the deferred constructor. Only the fNodeIndex is given here.
   * All other data, can be requested from the ownerDocument via the index.
   */
  DeferredElementDefinitionImpl(DeferredDocumentImpl ownerDocument,
      int nodeIndex) {
    super(ownerDocument, null);

    fNodeIndex = nodeIndex;
    needsSyncData(true);
    needsSyncChildren(true);

  } // <init>(DeferredDocumentImpl,int)

  //
  // DeferredNode methods
  //

  /**
   * Returns the node index.
   */
  public int getNodeIndex() {
    return fNodeIndex;
  }

  //
  // Protected methods
  //

  /**
   * Synchronizes the data (name and value) for fast nodes.
   */
  protected void synchronizeData() {

    // no need to sync in the future
    needsSyncData(false);

    // fluff data
    DeferredDocumentImpl ownerDocument =
        (DeferredDocumentImpl) this.ownerDocument;
    name = ownerDocument.getNodeName(fNodeIndex);

  } // synchronizeData()

  /**
   * Synchronizes the default attribute values.
   */
  protected void synchronizeChildren() {

    // we don't want to generate any event for this so turn them off
    boolean orig = ownerDocument.getMutationEvents();
    ownerDocument.setMutationEvents(false);

    // attributes are now synced
    needsSyncChildren(false);

    // create attributes node map
    DeferredDocumentImpl ownerDocument =
        (DeferredDocumentImpl) this.ownerDocument;
    attributes = new NamedNodeMapImpl(ownerDocument);

    // Default attributes dangle as children of the element
    // definition "node" in the internal fast table.
    for (int nodeIndex = ownerDocument.getLastChild(fNodeIndex);
        nodeIndex != -1;
        nodeIndex = ownerDocument.getPrevSibling(nodeIndex)) {
      Node attr = ownerDocument.getNodeObject(nodeIndex);
      attributes.setNamedItem(attr);
    }

    // set mutation events flag back to its original value
    ownerDocument.setMutationEvents(orig);

  } // synchronizeChildren()

} // class DeferredElementDefinitionImpl
